import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'
import {currentmenupers}  from '@/api/project/system/project_sys_sys_menu.js'
import qs from 'qs'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/auth-redirect'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()

  if (hasToken) {
    // debugger;
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.done()
    } else {
      // determine whether the user has obtained his permission roles through getInfo
      const hasRoles = store.getters.roles && store.getters.roles.length > 0
      if (hasRoles) {
        next()
      } else {
        try {
          // get user info
          // note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
          
          const { roles } = await store.dispatch('user/getInfo') 
          // generate accessible routes map based on roles
          const accessRoutes = await store.dispatch('permission/generateRoutes', roles)

          // dynamically add accessible routes
          router.addRoutes(accessRoutes)

          // hack method to ensure that addRoutes is complete
          // set the replace: true, so the navigation will not leave a history record
          next({ ...to, replace: true })
        } catch (error) {
          // remove token and go to login page to re-login
          await store.dispatch('user/resetToken')
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.fullPath}`)
          NProgress.done()
        }
      }
    }
  } else {
    // debugger;
    /* has no token*/

    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.fullPath}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})

export function gl_permission(fn){
  var _w = location.search;
  if(_w!=null && _w.length>0){
    _w = decodeURIComponent(_w);
    var result = _w.match(new RegExp("[\?\&]m_id=([^\&]+)", "i"));
    if (result == null || result.length < 1) { _w = ""; }
    else _w = result[1];
    if(_w.length>0){
      var out = {};
      currentmenupers(qs.stringify({ menu_id: _w })).then(o=>{
        if(o.dataArray && o.dataArray.dataCount>0){ 
          o.dataArray.dataList.forEach(element => {
            out[element.permissions_code]= element.permissions_name;
          });
        }
        if(fn)fn(out); 
      })
      .catch((result) => { 
        fn(out);
        // alert('菜单权限错误');
        console.log(result.msg || result);
      })
    }
  }
}
